This Saturday night, Louis C.K. will host the season finale of SNL. It will be the third time in the past three seasons he's hosted an episode, which is a lot. Last night on Late Night with Seth Meyers, the Louie star explained why he decided to host the show again despite the protestations of his friends.

"I have to do it, because there are so many signs that it's going to be an awful disaster," he told Meyers. "When you get an opportunity like that, you've got to go for it."

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It could be that C.K. is using these opportunities to host as chances to get back at SNL for not hiring him when he auditioned for the show in a comedy club years ago, a rejection that was especially painful because he thought he had a great set. "If you bomb you can be like, 'Well, I had a bad night,'" he said. "But I had a great night and they were like, 'Noooo. The best version of you, we don't want it anywhere near this place.'"

Things seemed to work out all right for C.K. anyway, and even if his fears are confirmed and Saturday night turns out to be an "awful disaster," at least he'll have Rihanna there to pick up the slack.

C.K. also remembered the time he snuck a pearl necklace joke on the air when he was a writer for Late Night with Conan O'Brien in the '90s. We'll let just let him tell that story: